Modular bollard luminaire louver

Abstract

A modular louver assembly for a bollard luminaire comprises a louver having an upper surface, a lower surface and an opening, a heat sink disposed within the opening of the louver and adjacent the lower surface, a plurality of LEDs disposed about the heat sink on a lower surface of the louver, and, a lens disposed beneath the heat sink.

Description

CROSS REFERENCES TO RELATED APPLICATIONS[0001]None.STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT[0002]None.REFERENCE TO SEQUENTIAL LISTING, ETC[0003]None.BACKGROUND[0004]1. Field of the Invention[0005]The present invention relates generally to a bollard luminaire. More particularly, the invention relates to a bollard luminaire having a plurality of louver modules.[0006]2. Description of the Related Art[0007]Bollards are protective structures which are generally located around buildings or machines at industrial, commercial, or institutional premises. They are believed to be named because their shape tends to resemble posts or “bollards” used at wharfs, and around which mooring lines are fastened. Bollards are generally known as having cement or extruded metal posts to protect an exterior portion of a building or the like. When metal bollard posts are utilized, they may be fastened to structures already placed in the ground or cemented into place, or alternatively f...

AI Technical Summary

Benefits of technology

The patent text describes a modular louver assembly for a bollard luminaire that includes a louver, heat sink, LEDs, and a lens. The LEDs are positioned on a printed circuit board with thermal vias, and the heat sink has a surface with a plurality of fins. The assembly also includes a microwave sensor for detecting occupants and a LED driver module that controls the LEDs. The luminaire can adjust the brightness based on the detection of occupants, and it has a hollow interior area and a dome casting. The technical effects of the patent text include improved LED longevity, reduced temperature, and reduced energy consumption.

Problems solved by technology

One problem with existing bollard luminaires is their inefficient use of energy.

One problem was the use of sensors which require an unobstructed “view” of the area surrounding the bollard.

In order to provide such “view,” the sensor had to be placed outside of the bollard, which was detrimental to the aesthetic quality of the bollard.

Another problem with the existing bollard design is that existing lamp systems are not as efficient as newer forms of lighting, such as light emitting diodes (LEDs) which can emit an equivalent amount of light with less power usage.

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